APA aipamena

Friedmann, W. (1971). The Future of the Oceans. Vakils, Feffer and Simons.

Chicago Style aipamena

Friedmann, Wolfganc. The Future of the Oceans. Bombay: Vakils, Feffer and Simons, 1971.

MLA aipamena

Friedmann, Wolfganc. The Future of the Oceans. Vakils, Feffer and Simons, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.